A Transmitter Independent Receiver Rx(0, 0, 0) and transmitter at Tx(R, 0, 0) then the Network (TIRN) is a network of radar receivers that location of a target in Cartesian coordinates is: operates in an area without cooperating with a particular radar transmitter, but rather using transmitters of opportunity (TOA) in order to detect RI(ct)2-R2] cos q5 sin 9 and track airborne, ballistic or surface targets. In this x = paper a brief vulnerability analysis is given in both 2(ct-R cos q5 sin 9) the detection/tracking and the communication [(ct)2 -R2] sin q5 sin 9 (1) subsystems of such a network. Electronic Defense y= (ED) solutions and interference avoidance techniques 2(ct-R cos q5 sin 9) are given. A TIRN is mostly based in silent (low F(ct)2 -R2 7 cos 9 emission) operation and redundancy techniques. It is Z = briefly described in the introduction. In the following 2(ct -R cos q5 sin 9) paragraphs dealing with jamming techniques and is discussed, for both the detection and communication subsystems, comparing the results with the classic inathe equactio systhe abover anten aremthe pa radar equivalent where applicable. It is finally coordinates extractedbythereceiverantennaazimuthand concluded that such a network less vulnerable than elevation.conventional radars in most cases and in some cases even detect possible jammer effectively, at a fraction magnif of ar(rT ). gt is u stanes of the cost of classic radar network. magnitude of order larger than the baselines (distances between the receivers) and it requires a signal with

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